The reason LEDs are polarized and what you need to know

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Polarized LED Lights

LED stands for Light Emitting Diode and is a solid-state semiconductor that is made up of different elements that fluoresce. Different levels and combinations of fluoresce, illuminate and result in various different colors. This is why different LED Rope Light colors are priced differently. Polarity refers to the direction in which the current flows. A diode in particular, is a semiconductor that allows current to pass in only one direction. Therefore, if you were to try to pass current through a diode in the opposite direction, the flow of electricity will be halted.

All home outlets are polarized as directed by the current electrical codes. You might have noticed that polarized cords have one prong that is larger than the other is. This prevents users from plugging in an electrical device using the wrong polarity. To get a better idea of things, try visualizing a standard car battery that consists of a positive and negative terminal. The current flows from the positive terminal to the negative terminal. Therefore, in order for the car to function properly, users need to plug in the positive end of your battery cable to the positive terminal and the negative end of the cable to the negative terminal. If you mix things up, then you bring about a reversed polarity that would not only ruin your battery but other electrical components as well.

Fortunately, when it comes to LEDs, the diode prevents electricity from passing in the opposite direction. In addition, unlike other electrical devices, LED Rope Lights will not sustain any damage even if you use a reverse polarity. In fact, they will simply not light up. If this is the case, you can reverse your LED Rope Light power cable by rotating 180 degrees or you can reattach the cable at the opposite side.

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